10-Day Weather Forecast - Port Jefferson Station, NY

Sunny. Highs in the lower 30s. Northwest winds 5 to 10 mph.

Partly cloudy. Lows around 15. Northwest winds around 5 mph.

Sunny. Highs in the upper 20s. Northwest winds 5 to 10 mph.

Mostly clear in the evening then becoming partly cloudy. Lows around 10 above.

Mostly sunny in the morning then becoming mostly cloudy. Highs in the upper 20s.

Mostly cloudy. A chance of snow showers in the evening. Cold with lows around 10 above. Chance of snow 30 percent. Wind chill values as low as zero after midnight.

Mostly sunny and windy cold with highs around 20. Wind chill values as low as 5 below in the morning.

Mostly clear in the evening then becoming partly cloudy. Windy cold with lows 5 to 10 above. Wind chill values as low as 10 below.

Mostly sunny. Cold with highs around 20. Wind chill values as low as 10 below in the morning.

Partly cloudy. Cold with lows 5 to 10 above. Wind chill values as low as 10 below after midnight.

Sunny cold with highs in the lower 20s. Wind chill values as low as 10 below in the morning.

Mostly clear. Low temperature around 14F. Dew point will be around 7F with an average humidity of 65%. Winds will be 10 mph from the NW.

Sunny. High temperature around 30F. Dew point will be around 13F with an average humidity of 60%. Winds will be 11 mph from the NW.

Clear. Low temperature around 22F. Dew point will be around 14F with an average humidity of 66%. Winds will be 8 mph from the NW.

Sunny. High temperature around 34F. Dew point will be around 20F with an average humidity of 64%. Winds will be 7 mph from the NW.

Mostly clear. Low temperature around 30F. Dew point will be around 22F with an average humidity of 70%. Winds will be 4 mph from the N.

Mostly cloudy with a chance of rain-snow mix. Chance of precipitation 40%. High temperature around 37F. Dew point will be around 26F with an average humidity of 68%. Winds will be 2 mph from the NW.

Cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 34F. Dew point will be around 26F with an average humidity of 71%. Winds will be 3 mph from the W.